Primitive arthropods, Biology

Assignment Help:

Primitive Arthropods

The primitive arthropods, Onychophora (for example Peripatus) have a series of paired legs which are not jointed but have a ringed appearance because of the presence of rows of papillae on them. Each leg consists of two parts, a conical proximal part along with their extrinsic muscles, and a small distal part comprising a pair of claws.

183_Primitive Arthropods.png

Figure: Peripatus lateral view of head

The limbs are protracted and retracted. Using these legs, and through extension and contraction of the body for working the legs they crawl. While a segment is extended, the legs are lifted and moved forward; subsequent effective stroke provides the animals a pushing force.


Related Discussions:- Primitive arthropods

Describe oxidative stress in new cardio-vascular, Describe Oxidative Stress...

Describe Oxidative Stress in New Cardio-vascular Risk Factors ? In the risk conferred by LDL cholesterol, the oxidative modification of LDL plays a central role, because it is

Viruses.., are there non-parasitic viruses

are there non-parasitic viruses

Exercise and medications in bronchial asthma, Exercise Stress or em...

Exercise Stress or emotional upset  Medications Aspirin, non-steroidal anti-inflammatory drugs(NSAIDs), beta- blockers(including eye drops), cholinergic dr

Define the prevention of diseases - function of vitamin e, Define the Preve...

Define the Prevention of diseases - Function of Vitamin E? Because of its anti-oxidant function and its role in inhibiting cell proliferation of smooth muscles, vitamin E can b

Explain the interaction of vitamin a with zinc, Explain the interaction of ...

Explain the interaction of vitamin a with Zinc? Its deficiency interferes with vitamin A metabolism. It leads to a reduction in the synthesis of plasma proteins, particularly,

Phylum labyrinthomorpha - protozoan, Phylum Labyrinthomorpha - Protozoan ...

Phylum Labyrinthomorpha - Protozoan Trophic stage, ectoplasmic network with spindle shaped or spherical nonamoeboid cells. Small group living on algae; mostly marine or estuar

Explain potential effect of nutrient and drug interaction, Explain Potentia...

Explain Potential Effect of Nutrient and Drug Interaction? The extent of the effects of any food and drug interaction call varies. Potential effects depend on the dose and the

Explain scope of food science and technology as a subject, Explain Scope of...

Explain Scope of Food Science and Technology as a Subject? Food science and technology has developed as a discipline to systematically organize and link various kinds of knowle

What are the three main parts of a eukaryotic cell, Q. What are the three m...

Q. What are the three main parts of a eukaryotic cell? The eukaryotic cell can be separated into two major portions: the cell membrane that separates the intracellular space fr

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd